Improvement in harvester-cutters



"tain @anni effin.

n @with N rHoM'AfseARRI-GK, or PROVIDENCE, RHofDnfIsLAND.-

Letters Patent No.l112,582, dated March 14, 1871.

The Schednf xefen'edtd in theseLettersrPateut and making part of the same.

To all whomfit may concern:

Be it known that 4I, THOMAS GARBIGK, of Provid ence, in the county ot Providence and State of Rhode Island, have invented an Improved Knife or Knives for `the Fingers of Mowing-Maohines; and do hereby declare that the following is a fullhand exact descrip;

` y tion, refe rence being had to the accompanying drawa ing makinga part of this specioation.- Y A l The nature of my invention consists in a movable, `elastic, self-adjusting `knife or knives, placed diagon` ally or otherwise `within the slot of the finger or n gers of mowing-machines, in such a manner' 'as to bring its edgeor edges, or portions .of -itssedge or edges, in more perfect contact. with the edge or edges of the knives attachedto the cutti'ngv bars of mowingmachines, for the purpose of produciugfa shearing cut by the lateral motion of said outting-bars, and at the same time rendering all the knives mutually selfsharpening.

To enable those skilled in the art to make and use my invention, I will proceed to describe its construe` `tion and operation. i

` t Figure l'represents a side viewlof the finger of a mowing-machine.

`Figure 2, a top viewlof the same.

u, the iron finger. 7, the Vslot in said finger.

` the finger-guard.

c, the diagonally-plaedl elastic knife, fastened by rivets or other device to-the finger at d.

e, point or end of said knife, resting in slot and upon finger at f. Y

Y,The finger is made in the usual form, of cast metal;

but the knife C, withinthe said linger, is `a spring,1

ixed'at one end by being riveted near the base of the finger, with its free end extendingfor'ward beneath This knife C also curves .slightly upward from its xed end, an'd across the vplane of'the edge of the sliding cutter on the cutter-bar, so that when the outters edge slides across the spring-edge of the knife in the finger a perfect shearing eut of the interposing grain is produced, the free end of the spring-knife yielding to the passage of the cutter over it, and the two edges being drawn against each other ina -manner to produce a self-sharpening effectuponboth.

Having described m'y said invention, I clarn The spring-knife C, constructed as described, in combination with a l1arvester .-1inger, as and for the purpose specified.

VVit-nesses: x

Wimmer W. RCKARD, ALFRED RICHARD.

'rrioMAs GARRIGK. 

